MIC5219-2.85BMM

Product Overview

Category

MIC5219-2.85BMM belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• Package: The MIC5219-2.85BMM comes in a miniature SOT-23 package.
• Essence: It is a low-dropout (LDO) linear voltage regulator.
• Packaging/Quantity: The product is typically available in reels or tubes, with varying quantities depending on the supplier.

Specifications

The MIC5219-2.85BMM has the following specifications:

• Output Voltage: 2.85V
• Input Voltage Range: 2.5V to 16V
• Dropout Voltage: 120mV at 100mA load current
• Quiescent Current: 120µA
• Load Regulation: ±0.1%
• Line Regulation: ±0.05%
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The pin configuration of MIC5219-2.85BMM is as follows:

```

---

| | --| VIN VOUT |-- --| GND BYP |-- |___________| ```

Functional Features

The key functional features of MIC5219-2.85BMM include:

• Low dropout voltage: The regulator maintains a stable output voltage even when the input voltage is close to the desired output voltage.
• Low quiescent current: The device consumes minimal current when in standby mode, conserving power.
• Excellent line and load regulation: Ensures a consistent output voltage regardless of variations in input voltage or load conditions.
• Thermal shutdown protection: The regulator automatically shuts down if the temperature exceeds the specified limit, preventing damage to the device.

Advantages and Disadvantages

Advantages

• Compact size and lightweight.
• Wide input voltage range allows for versatile applications.
• Low dropout voltage minimizes power dissipation.
• Excellent line and load regulation ensures stable output voltage.

Disadvantages

• Limited output voltage options.
• Higher cost compared to non-LDO regulators.
• Requires external capacitors for stability.

Working Principles

MIC5219-2.85BMM operates based on the principle of a low-dropout linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The MIC5219-2.85BMM finds applications in various electronic systems, including but not limited to:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from the low dropout voltage and low quiescent current of this regulator.
2. Automotive electronics: The wide input voltage range and thermal shutdown protection make it suitable for automotive applications, including infotainment systems, lighting controls, and sensors.
3. Industrial control systems: The regulator can be used in industrial automation, robotics, and control systems where stable and reliable voltage regulation is crucial.
4. Communication equipment: Wireless routers, modems, and other communication devices can utilize this regulator to ensure consistent power supply.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to MIC5219-2.85BMM include:

1. LM1117-2.85: A popular LDO regulator with a fixed 2.85V output voltage.
2. LT1763-2.85: Another LDO regulator with a 2.85V output voltage and low dropout characteristics.
3. MAX8887: A versatile LDO regulator with adjustable output voltage and low quiescent current.

These alternative models provide options for different output voltages, package types, and additional features to suit specific application requirements.

In conclusion, the MIC5219-2.85BMM is a compact and efficient low-dropout linear voltage regulator. Its wide input voltage range, low dropout voltage, and excellent regulation make it suitable for various electronic applications. However, it is important to consider alternative models based on specific needs and requirements.